* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 20px;
        }
        h1, h2, h3, h4 {
            font-family: 'Arial Rounded MT Bold', 'Arial', sans-serif;
            color: #2c3e50;
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        h1 {
            font-size: 2.8rem;
            text-align: center;
            margin: 2rem 0;
            color: #3498db;
            text-shadow: 1px 1px 3px rgba(0,0,0,0.1);
        }
        h2 {
            font-size: 2.2rem;
            border-left: 5px solid #e74c3c;
            padding-left: 15px;
            margin-top: 2.5rem;
        }
        h3 {
            font-size: 1.8rem;
            color: #2980b9;
            margin-top: 2rem;
        }
        h4 {
            font-size: 1.4rem;
            color: #16a085;
            margin-top: 1.5rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        a {
            color: #3498db;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #e74c3c;
            text-decoration: underline;
        }
        strong {
            color: #2c3e50;
            font-weight: 700;
        }
        em {
            font-style: italic;
            color: #7f8c8d;
        }
        .container {
            width: 100%;
            margin: 0 auto;
        }
        header {
            background: linear-gradient(90deg, #2c3e50, #4a6491);
            color: white;
            padding: 1.5rem 0;
            border-radius: 0 0 15px 15px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            margin-bottom: 2rem;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 2.5rem;
            font-weight: 900;
            color: #f1c40f;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo:hover {
            color: #fff;
            text-decoration: none;
        }
        .my-logo i {
            font-size: 2.2rem;
        }
        nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .nav-links a {
            color: #ecf0f1;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 5px;
            transition: all 0.3s ease;
        }
        .nav-links a:hover {
            background-color: #3498db;
            color: white;
            text-decoration: none;
            transform: translateY(-3px);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        .breadcrumb {
            padding: 1rem 0;
            font-size: 0.95rem;
            color: #7f8c8d;
            border-bottom: 1px solid #eee;
            margin-bottom: 2rem;
        }
        .breadcrumb a {
            color: #7f8c8d;
        }
        .breadcrumb a:hover {
            color: #3498db;
        }
        .search-container {
            background: white;
            padding: 2rem;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            margin: 2rem 0;
            text-align: center;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
        }
        .search-form input {
            flex: 1;
            padding: 1rem 1.5rem;
            border: 2px solid #3498db;
            border-radius: 50px 0 0 50px;
            font-size: 1.1rem;
            outline: none;
        }
        .search-form button {
            background: #3498db;
            color: white;
            border: none;
            padding: 0 2rem;
            border-radius: 0 50px 50px 0;
            cursor: pointer;
            font-size: 1.1rem;
            font-weight: 600;
            transition: background 0.3s ease;
        }
        .search-form button:hover {
            background: #2980b9;
        }
        main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            margin: 2rem 0;
        }
        @media (max-width: 1024px) {
            main {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background: white;
            padding: 2.5rem;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
        }
        .sidebar {
            background: white;
            padding: 2rem;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
            align-self: start;
        }
        .sidebar-section {
            margin-bottom: 2.5rem;
        }
        .sidebar h3 {
            font-size: 1.5rem;
            border-bottom: 3px solid #3498db;
            padding-bottom: 0.5rem;
            margin-bottom: 1.5rem;
        }
        .rating-container, .comments-container {
            background: #f8f9fa;
            padding: 2rem;
            border-radius: 10px;
            margin: 3rem 0;
            border-left: 5px solid #2ecc71;
        }
        .rating-form, .comment-form {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
            margin-top: 1.5rem;
        }
        .rating-stars {
            display: flex;
            gap: 0.5rem;
            font-size: 2rem;
            color: #f1c40f;
            cursor: pointer;
        }
        .rating-stars i:hover {
            transform: scale(1.2);
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        .form-group label {
            font-weight: 600;
            color: #2c3e50;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            padding: 1rem;
            border: 1px solid #ddd;
            border-radius: 5px;
            font-size: 1rem;
            font-family: inherit;
        }
        .form-group textarea {
            min-height: 150px;
            resize: vertical;
        }
        .submit-btn {
            background: linear-gradient(90deg, #2ecc71, #27ae60);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 50px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            align-self: flex-start;
        }
        .submit-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(46, 204, 113, 0.3);
        }
        .article-image {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: 10px;
            margin: 2rem auto;
            display: block;
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
            transition: transform 0.5s ease;
        }
        .article-image:hover {
            transform: scale(1.02);
        }
        .internal-links {
            background: #e8f4fc;
            padding: 1.5rem;
            border-radius: 10px;
            margin: 2rem 0;
        }
        .internal-links ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1rem;
        }
        .internal-links li {
            padding: 0.5rem 0;
        }
        .internal-links a {
            color: #2c3e50;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .internal-links a:hover {
            color: #e74c3c;
        }
        footer {
            background: #2c3e50;
            color: #ecf0f1;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
            border-radius: 15px 15px 0 0;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h3 {
            color: #f1c40f;
            border-bottom: 2px solid #3498db;
            padding-bottom: 0.5rem;
            margin-bottom: 1.5rem;
        }
        friend-link {
            display: block;
            padding: 0.8rem;
            background: rgba(255,255,255,0.1);
            margin-bottom: 0.8rem;
            border-radius: 5px;
            transition: all 0.3s ease;
        }
        friend-link:hover {
            background: rgba(52, 152, 219, 0.3);
            transform: translateX(10px);
        }
        friend-link a {
            color: #ecf0f1;
            display: block;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #4a6572;
            color: #bdc3c7;
            font-size: 0.95rem;
        }
        .last-updated {
            background: #fff8e1;
            padding: 1rem;
            border-radius: 5px;
            margin: 2rem 0;
            display: flex;
            align-items: center;
            gap: 1rem;
            font-weight: 600;
        }
        .highlight-box {
            background: linear-gradient(135deg, #ffeaa7, #fab1a0);
            padding: 2rem;
            border-radius: 10px;
            margin: 2rem 0;
            border-left: 5px solid #e17055;
        }
        .tip {
            background: #d1ecf1;
            border-left: 5px solid #17a2b8;
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 10px 10px 0;
        }
        .quote {
            font-style: italic;
            color: #555;
            border-left: 3px solid #3498db;
            padding-left: 1.5rem;
            margin: 1.5rem 0;
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.5rem;
            }
            .header-content {
                flex-direction: column;
                gap: 1.5rem;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                gap: 1rem;
            }
            .nav-links.active {
                display: flex;
            }
            .hamburger {
                display: block;
                position: absolute;
                top: 1.5rem;
                right: 20px;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form input {
                border-radius: 50px;
                margin-bottom: 1rem;
            }
            .search-form button {
                border-radius: 50px;
                padding: 1rem;
            }
            .article-content {
                padding: 1.5rem;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .article-content, .sidebar {
            animation: fadeIn 0.8s ease-out;
        }
        @media print {
            .sidebar, .search-container, .rating-container,
            .comments-container, .hamburger, footer {
                display: none;
            }
            body {
                background: white;
                color: black;
            }
            .article-content {
                box-shadow: none;
                padding: 0;
            }
            a {
                color: black;
                text-decoration: underline;
            }
        }